import config from '../config';
type positionType = {x: number,y: number};
class position{
    // 批量获取唯一坐标
    collection:positionType[] = [];
    public getCollection(num: number){
        const collection = [] as {x: number; y: number}[];
        for(let i = 0; i < num; i++){
            while(true){
                const position = this.position();
                const exists = collection.some(c => c.x == position.x && c.y == position.y);
                if(!exists){
                    collection.push(position);
                    this.collection.push(position);
                    break;
                }
            }
        }
        return collection;
    }

    public position(){
        return{
            x:Math.floor(Math.random() * (config.canvas.width / config.model.width))*config.model.width,
            y:Math.floor(Math.random() * (config.canvas.height / config.model.height - 5))*config.model.height + config.model.height*2
        }
    }
}
export default new position()